291227157

素因数分解:

$3^4\times {\mathrm{13}}^1\times {\mathrm{193}}^1\times {\mathrm{1433}}^1$

素因数の和:1651

約数の個数: 40

約数和(自身を含む): 471264024

約数和(自身を除く): 180036867

約数列:

[1, 3, 9, 13, 27, 39, 81, 117, 193, 351, 579, 1053, 1433, 1737, 2509, 4299, 5211, 7527, 12897, 15633, 18629, 22581, 38691, 55887, 67743, 116073, 167661, 203229, 276569, 502983, 829707, 1508949, 2489121, 3595397, 7467363, 10786191, 22402089, 32358573, 97075719, 291227157]

約数ペア:

[(1, 291227157), (3, 97075719), (9, 32358573), (13, 22402089), (27, 10786191), (39, 7467363), (81, 3595397), (117, 2489121), (193, 1508949), (351, 829707), (579, 502983), (1053, 276569), (1433, 203229), (1737, 167661), (2509, 116073), (4299, 67743), (5211, 55887), (7527, 38691), (12897, 22581), (15633, 18629)]